The Sinking Lands separate the Sea of the East from the Inner Sea, and the Lankhmar Continent from the rest of Nehwon. Every day submerged gases build up beneath a shelf of rock which rises to the surface of the sea, allowing passage by land, then slowly sinks after about ten hours.

The Old Coast (between Ilthmar and Kadesh) was the setting for the Old Coast Campaign. It is home to bandits, gyspies, goatherds and the occasional lost Diamond Knight.